<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>商品管理</el-breadcrumb-item>
			<el-breadcrumb-item>商品列表</el-breadcrumb-item>
		</el-breadcrumb>

		<!-- 卡片视图区域 -->
		<el-card>
			<el-row :gutter="30">
				<el-col :span="8">
					<el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
						<el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="goAddPage">添加商品</el-button>
				</el-col>
			</el-row>

			<!-- table表格区域 -->
			<el-table :data="goodsList" border stripe>
				<el-table-column type="index" label="序号" width="50px"></el-table-column>
				<el-table-column label="商品名称" prop="goods_name"></el-table-column>
				<el-table-column label="商品价格(元)" prop="goods_price" width="120px"></el-table-column>
				<el-table-column label="商品重量" prop="goods_weight" width="90px"></el-table-column>
				<el-table-column label="创建时间" prop="add_time" width="180px">
					<template slot-scope="scope">
						{{ scope.row.add_time | dateFormat }}
					</template>
				</el-table-column>
				<el-table-column label="操作" width="200px">
					<template slot-scope="scope">
						<el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
						<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)">删除 </el-button>
					</template>
				</el-table-column>
			</el-table>

			<!-- 分页区域 -->
			<el-pagination
				@size-change="handleSizeChange"
				@current-change="handleCurrentChange"
				:current-page="queryInfo.pagenum"
				:page-sizes="[1, 2, 5, 10]"
				:page-size="queryInfo.pagesize"
				layout="total, sizes, prev, pager, next, jumper"
				:total="total"
			></el-pagination>
		</el-card>
	</div>
</template>

<script>
export default {
	// 私有数据节点
	data() {
		return {
			// 查询参数对象
			queryInfo: {
				query: '',
				pagenum: 1,
				pagesize: 5
			},
			// 商品列表
			goodsList: [],
			// 数据总条数
			total: 0
		};
	},
	// 生命周期函数
	created() {
		this.getGoodsList();
	},
	// 事件处理函数节点
	methods: {
		// 获取商品列表
		async getGoodsList() {
			const { data: res } = await this.$http.get('goods', {
				params: this.queryInfo
			});
			if (res.meta.status !== 200) {
				return this.$message.error('获取商品列表失败！');
			}
			this.goodsList = res.data.goods;
			this.total = res.data.total;
		},
        // 分页改变事件
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize;
            this.getGoodsList();
        },
        // 页码值改变事件
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage;
            this.getGoodsList();
        },
        // 根据id删除商品信息
        async removeById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品，是否继续？', '提示', {
				confirmButtonText: '确定',
				cancelButtonText: '取消',
				type: 'warning'
			}).catch(err => err);
            if(confirmResult !== 'confirm') {
                return this.$message.info('已取消删除!');
            }
            const {data: res} = await this.$http.delete(`goods/${id}`);
            if(res.meta.status !== 200) {
                this.$message.error('删除商品信息失败！');
            }
            this.$message.success('删除商品信息成功！');
            this.getGoodsList();
        },
        // 点击按钮跳转到添加商品页面
        goAddPage() {
            this.$router.push('/goods/add');
        }


	}
};
</script>

<style lang="less" scoped>
</style>